Senior Backend Engineer - Cloud & API Leader

Capital Rx; Denver (CO); Hybrid; USD 128,000 - 190,000; Full time

Job summary

Capital Rx is seeking a senior software engineer to lead large, high-impact projects in a hybrid setting with offices in NYC, Denver, and Charlotte. You will drive enterprise API integrations, cloud-native backend development, and data migrations, collaborating with product managers, designers, and clients to deliver scalable, secure solutions.

You will shape architecture, mentor teams, and ensure robust software delivery across regions, with a strong emphasis on security and reliability in a

Qualifications

• 7+ years of related job experience with a broad range of technical skills.
• Desire to work in a health technology company; PBM experience is a plus.
• Strong experience in Python (Flask/SQLAlchemy) and TypeScript (React).
• Advanced PostgreSQL knowledge with complex queries and optimization.
• Experience with microservices, API-based applications, and distributed caching.
• Proven ability to deliver cloud-based web apps using infrastructure as code (AWS, Terraform).
• Ability to improve scalability and observability of systems.
• Linux/Bash, Python, Node.js proficiency; Git in a mono repository.
• Strong unit testing and Playwright-based integration testing.
• Excellent communication for remote collaboration with clients.

Responsibilities

• Lead development and deployment of cutting-edge solutions from design to production.
• Collaborate with product managers to refine requirements and ensure seamless integration.
• Engage with major clients to architect innovative solutions and enhance product functionality.
• Establish enterprise APIs across services for interoperability and scalability.
• Build backend applications in Python on AWS Lambda, ECS, API Gateway.
• Implement serverless backend code (Flask/AWS Lambda/ECS).
• Design scalable systems to handle high-volume transactions with reliability.
• Ensure development follows security best practices and code quality standards.
• Provide technical leadership and drive timely, high-quality software delivery.
• Make informed architectural decisions leveraging prior experience.

Skills

Python

TypeScript

PostgreSQL

Microservices

AWS & Terraform

Linux/Bash

Git (mono repo)

Unit testing (Playwright)

API Integrations

Security mindset

Tools

Flask

SQLAlchemy

React

AWS

Terraform

Job description

Capital Rx is seeking a senior software engineer to lead large, high-impact projects in a hybrid setting with offices in NYC, Denver, and Charlotte. You will drive enterprise API integrations, cloud-native backend development, and data migrations, collaborating with product managers, designers, and clients to deliver scalable, secure solutions.

You will shape architecture, mentor teams, and ensure robust software delivery across regions, with a strong emphasis on security and reliability in a